Hide reply answer if no answers

app/src/main/java/eu/faircode/email/AdapterMessage.java

@@ -141,6 +141,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
     private String sort;
     private boolean filter_duplicates;
     private boolean suitable;
+    private int answers = -1;
     private IProperties properties;
 
     private int colorPrimary;
@@ -3204,6 +3205,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             popupMenu.getMenu().findItem(R.id.menu_reply_to_all).setVisible(recipients > 1);
             popupMenu.getMenu().findItem(R.id.menu_reply_list).setVisible(data.message.list_post != null);
             popupMenu.getMenu().findItem(R.id.menu_reply_receipt).setVisible(data.message.receipt_to != null);
+            popupMenu.getMenu().findItem(R.id.menu_reply_answer).setVisible(answers != 0 || !Helper.isPro(context));
 
             popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                 @Override
@@ -3433,6 +3435,11 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
         }
     }
 
+    void setAnswerCount(int answers) {
+        this.answers = answers;
+        Log.i("Answer count=" + answers);
+    }
+
     @Override
     public int getItemViewType(int position) {
         return (compact ? R.layout.item_message_compact : R.layout.item_message_normal);

app/src/main/java/eu/faircode/email/DaoAnswer.java

@@ -41,6 +41,10 @@ public interface DaoAnswer {
             " ORDER BY name COLLATE NOCASE")
     LiveData<List<EntityAnswer>> liveAnswers();
 
+    @Query("SELECT COUNT(*) FROM answer" +
+            " WHERE NOT hide")
+    LiveData<Integer> liveAnswerCount();
+
     @Insert
     long insertAnswer(EntityAnswer answer);
 

app/src/main/java/eu/faircode/email/FragmentMessages.java

@@ -1955,6 +1955,13 @@ public class FragmentMessages extends FragmentBase {
             }
         });
 
+        db.answer().liveAnswerCount().observe(getViewLifecycleOwner(), new Observer<Integer>() {
+            @Override
+            public void onChanged(Integer count) {
+                adapter.setAnswerCount(count == null ? -1 : count);
+            }
+        });
+
         // Folder
         switch (viewType) {
             case UNIFIED: